Shaniawright35 Shaniawright35

24-09-2016
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In which trimester does the following occur? A sac called a placenta forms around the embryo and is connected to the embryo with an umbilical cord.

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geidycapoeira geidycapoeira

24-09-2016

On the first trimester.

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rebeccakanter rebeccakanter

24-09-2016

Key word is embryo. First trimester forms embryo, after 3 month it's a fetus.

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